Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. architectural elements
7. circulation elements

Narrower term/s

• wheelchair ramps
• boat launching ramps [NP]
• moving ramps [NP]
• water stairs (landscaped-site elements) [NP]
• launching ramps (general inclined planes)

Anotations

Scope note:

Inclined planes or slopes that are constructed of earth, stone, cement, metal, wood, or another material and used to connect two different levels, or to connect one level to the air or water. Examples include sloping floors or walks in architecture, sloping construction used in highway engineering, movable sets of stairs used when boarding or leaving an airplane, and movable slopes to allow access to a bus or other type of vehicle.